detail view sample V23_017

sample: V23_017
treatment method: Einstufige PEG-Konservierung
Conservation Laboratory: Natmus Kopenhagen

Before and after view

sample
wet weight 1036.3 g weight under water 84 g
weight after impregnation no value weight after drying 599.8 g
Umax 311.0 % degree of degradation 2
residual density 0.26 g/cm3 volume (water displacement) 952.3 cm3
density before conservation 1.08 g/cm³ final density 0.63 g/cm³
impregnation no value proportion of impregnating agent 55.5 %

survey data (caliper method)
nail spacing before after shrinkage
radial 67.0 mm 66.6 mm 0.5 %
tangential 50.8 mm 50.8 mm 0.0 %
longitudinal 86.4 mm 86.3 mm 0.1 %
volume shrinkage: 0.5 %

ASE-radial 96.2 % ASE-tangential 100.3 %
ASE-longitudinal 98.7 % ASE volume 98.1 %

survey data (3D scan)
volume (previous state) 955.9 cm3 volume (final state) 955.5 cm3 volume shrinkage 0.0 %
surface (previous state) 627.4 cm2 surface (final state) 609.0 cm2 Surface change -2.9 %
radial cut surface (previous state) 8241.0 mm2 radial cut surface (final state) 8333.8 mm2 radial shrinkage -1.1 %
tangential cut surface (previous state) 6046.8 mm2 tangential cut surface (final state) 6062.1 mm2 tangential shrinkage -0.3 %
longitudinal measurement (previous state) 131.8 mm average length change -0.3 mm longitudinal shrinkage -0.5 %

ASE-radial 103.5 % ASE-tangential 100.9 %
ASE-longitudinal 122.8 % ASE volume 99.9 %

scan view [open 3D view in new tab]

preservation method (details)
pretreatment Keine weitere Vorbehandlung
impregnation impregnant: PEG 2000, 10-40%-Lösung mit Leitungswasser
impregnation process: Einlegen der Hölzer in 10%-PEG 2000-Lsg., steigern der Konzentration bis auf 40%, keine zusätzliche Erwärmung der Bäder - Tränkung bei Raumtemperatur
drying Gefriertrocknung in gekühlter Kammer (ca. -30°C)
aftercare Entfernen des PEG-Überschusses von der Oberfläche mit weichem Pinsel und Ethanol, Kleben (minimal) abgängiger Späne/Fragmente mit Paraloid B72 (40% in Aceton)

time data
duration pretreatment no value duration impregnation 149 weeks duration drying 20 weeks
total duration of conservation: 169 weeks

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